Oil Pump

Remove the oil pump relief valve from its bore and coat it with clean engine oil.

Place the valve into its bore and let it fall into the bore smoothly under its own weight. If the valve does not fall smoothly into the bore replace the pump assembly.

Fig. Check the relief valve

Check the relief valve

Place the pump rotors into the pump with the marks facing upwards.

Using a feeler gauge and a straight edge, measure the clearance between the rotors and the straight edge. The side clearance should be 0.0010-0.0028 in. (0.025-0.071 mm). The maximum clearance is 0.0028 in. (0.071mm). if the clearance is more than the maximum specified, replace the pump assembly.

Fig. Check the rotor side clearance

Check the rotor side clearance

Using a feeler gauge, measure the clearance between the drive and driven pump rotors. The tip clearance should be 0.0019-0.0063 in. (0.040-0.160 mm). The maximum clearance is 0.0063 in. (0.160mm). if the clearance is more than the maximum specified, replace the rotors.

Fig. Check the rotor tip clearance

Check the rotor tip clearance

Using a feeler gauge, measure the clearance between the driven rotors and body. The clearance should be 0.0102-0.0128 in. (0.260-0.325 mm). The maximum clearance is 0.0128 in. (0.325mm). if the clearance is more than the maximum specified, replace the pump assembly.

Fig. Check the rotor body clearance

Check the rotor body clearance

Removal & Installation

1ZZ-FE Engine

Before servicing the vehicle, refer to the Precautions section.

Drain the engine oil.

Remove or disconnect the following:

Negative battery cable

Timing chain and crankshaft sprocket

Timing chain vibration damper

Oil pump bolts, pump and gasket

Fig. Oil pump mounting-1ZZ-FE and 2ZZ-GE engines

Oil pump mounting-1ZZ-FE and 2ZZ-GE engines

To install:

Clean the mounting surface.

Install or connect the following:

Oil pump, with new gasket. Engage the spline teeth of the oil pump drive rotor with the larger teeth of the crankshaft, and slide the pump on.

Oil pump bolts and tighten to 80 inch lbs. (9 Nm)

Crankshaft vibration damper and tighten to 80 inch lbs. (9 Nm)

Crankshaft sprocket and timing chain

Negative battery cable

Fill the engine with clean oil.

Start the vehicle, check for leaks and repair if necessary.

Before servicing the vehicle, refer to the precautions section.

Drain the engine oil.

Remove or disconnect the following:

Negative battery cable

Timing chain and crankshaft sprocket

Timing chain vibration damper

Oil pump bolts, pump and gasket

Fig. Oil pump mounting-1ZZ-FE and 2ZZ-FE Engines

Oil pump mounting-1ZZ-FE and 2ZZ-FE Engines

To install:

Clean the mounting surface.

Install or connect the following:

Oil pump, with new gasket. Engage the spline teeth of the oil pump drive rotor with the larger teeth of the crankshaft, and slide the pump on.

Oil pump bolts and tighten to 80 inch lbs. (9 Nm)

Crankshaft vibration damper and tighten to 80 inch lbs. (9 Nm)

Crankshaft sprocket and timing chain

Negative battery cable

Fill the engine with clean oil.

Start the vehicle, check for leaks and repair if necessary.

2zz-FE Engine

Before servicing the vehicle, refer to the precautions section.

Drain the engine oil.

Remove or disconnect the following:

Negative battery cable

Timing chain and crankshaft sprocket

Oil pump and gasket

To install:

Clean the mounting surface.

Install or connect the following:

Oil pump, with new gasket. Engage the spline teeth of the oil pump drive rotor with the larger teeth of the crankshaft, and slide the pump on.

Oil pump bolts and tighten to 80 inch lbs. (9 Nm)

Crankshaft sprocket and timing chain

Negative battery cable

Fill the engine with clean oil.

Start the vehicle, check for leaks and repair if necessary.

2zz-Ge And 2zz-FE Engines

Before servicing the vehicle, refer to the Precautions section.

Drain the engine oil.

Remove or disconnect the following:

Negative battery cable

Timing chain and crankshaft sprocket

Oil pump and gasket

To install:

Clean the mounting surface.

Install or connect the following:

Oil pump, with new gasket. Engage the spline teeth of the oil pump drive rotor with the larger teeth of the crankshaft, and slide the pump on.